Debris flow impact estimation on a rigid barrier

F Vagnon, A Segalini - Natural Hazards and Earth System …, 2016 - nhess.copernicus.org
The aim of this paper is to analyse debris flow impact against rigid and undrained barrier in
order to propose a new formulation for the estimation of acting force after the flow impact to …

Debris flow risk mitigation by the means of rigid and flexible barriers–experimental tests and impact analysis

L Canelli, AM Ferrero, M Migliazza… - Natural Hazards and …, 2012 - nhess.copernicus.org
The impact of a debris flow on a structure can have disastrous effects because of the
enormous destructive potential of this type of phenomenon. Although the introduction of risk …

Analysing debris-flow impact models, based on a small scale modelling approach

C Scheidl, M Chiari, R Kaitna, M Müllegger… - Surveys in …, 2013 - Springer
The objective of this study is to analyse adaptable debris-flow impact models, which are very
important for mitigation measurements and buildings using their sphere of influence. For this …

A new physically based impact model for debris flow

X Li, J Zhao, K Soga - Géotechnique, 2021 - icevirtuallibrary.com
A new analytical model is proposed to estimate the peak impact pressure of debris flow
exerted on a rigid barrier. The new model consists of two terms, p= α 1 ρ 0 gh 0+ 0· 5 ρ 0 u …

Design of flexible debris flow barriers

A Volkwein, C Wendeler, G Guasti - Italian journal of engineering …, 2011 - rosa.uniroma1.it
A new type of flexible net barrier system de-signed to protect against debris flows with
volumes of up to 1000 m3 has been developed. A detailed study and testing programme …

Dynamic impact of a debris flow front against a vertical wall

A Armanini, M Larcher, M Odorizzi - Italian Journal of Engineering …, 2011 - rosa.uniroma1.it
Recent experimental results obtained at the University of Trento show that a liquid-granular
wave can impact against a vertical obstacle producing two different mechanisms of …

New simple method for calculating impact force on flexible barrier considering partial muddy debris flow passing through

DY Tan, JH Yin, WQ Feng, ZH Zhu, JQ Qin… - … of Geotechnical and …, 2019 - ascelibrary.org
Flexible barriers trap large particles and boulders in debris flow but allow slurry and small
particles to pass through. Field tests and real cases indicate that a certain amount of slurry …

Velocity attenuation of debris flows and a new momentum-based load model for rigid barriers

RCH Koo, JSH Kwan, CWW Ng, C Lam, CE Choi… - Landslides, 2017 - Springer
Effective design of mitigation measures against debris flow hazards remains a challenging
geotechnical problem. At present, a pseudo-static approach is commonly used for the …

Influence of deflector on the impact dynamics of debris flow against rigid barrier

CWW Ng, Z Li, YD Wang, H Liu, S Poudyal… - Engineering …, 2023 - Elsevier
A deflector is a structure installed at the crest of a rigid barrier to prevent the over-spilling of
debris flow from damaging the downstream infrastructures and human lives. Despite its clear …

New impact equation using barrier Froude number for the design of dual rigid barriers against debris flows

CWW Ng, U Majeed, CE Choi, W De Silva - Landslides, 2021 - Springer
In the design of multiple rigid barriers, the height of the first barrier governs the impact
dynamics of debris flow on the next barrier in a channel. However, current design …